• 제목/요약/키워드: Korea Science Academy

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Occurrence of Stem Canker on Rape Caused by Leptosphaeria biglobosa in Korea

  • Hong, Sung-Kee;Kim, Wan-Gyu;Shin, Dong-Beom;Choi, Hyo-Won;Lee, Young-Kee;Lee, Sang-Yeob
    • The Plant Pathology Journal
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    • 제25권3호
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    • pp.294-298
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    • 2009
  • Stem canker symptoms were observed in a rape field in Muan, Korea during a disease survey in May 2006. A total of 15 isolates of Phoma sp. were obtained from the infected stems of the plant. All isolates were identified as Leptosphaeria biglobosa based on their morphological and cultural characteristics. The Korean isolates of L. biglobosa were assigned to 'brassicae' among six subclades of L. biglobosa complex based on the entire ITS sequences of rDNA. Pathogenicity of the fungal isolates was confirmed on leaves and stems of rape by artificial inoculation. This is the first report that Leptosphaeria biglobosa causes stem canker of rape in Korea.

전통식품 품질인증 된장의 품질특성 (The Quality Characteristics of Commercial Deonjang Certified for Traditional Foods)

  • 강지은;최혜선;최한석;박신영;송진;최지호;여수환;정석태
    • 한국지역사회생활과학회지
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    • 제24권4호
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    • pp.537-542
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    • 2013
  • Deonjang has been developed as a fermented food in Korea. It produces a distinctive flavors and tastes during the fermentation process. The purpose of this study was to determine the quality characteristics of commercial deonjang certified for traditional foods. We investigated the amino nitrogen, sodium chloride(NaCl), total colony counts, coliforms, Bacillus cereus and isoflavone of 24 commercial deonjang samples certified for traditioinal foods. Deonjang showed wide ranges in amino nitrogen(105.76~318.93 mg%) and NaCl(12.53~16.51%). Survey distribution of microflora investigation in the total colony counts were detected in all 24 samples(100%), and the range is low $1.5{\times}10^6$ CFU/g, at the highest $2.5{\times}10^9$ CFU/g respectively. For the coliform, the following results were $0{\sim}5.0{\times}10^1$ CFU/g. B.cereus was detected in a total of four samples were $2.5{\times}10^3{\sim}3.3{\times}10^4$ CFU/g in the distribution. Daidzein of isoflavones showed the lowest at 86.7 ppm, 681.8 ppm range of the best shows and genistein as low as 0 to 50.0 ppm respectively. This research provided information for quality characteristics of commercial deonjang certified for traditional foods.

A Knowledge-Based Technical Support System for ECRC

  • Shin, J.K.;Hwang, J.W.
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 1998년도 학술대회지 vol.1
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    • pp.129-140
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    • 1998
  • ㆍ ECRC ㆍ Knowledge Management ㆍ KM technologies ㆍ KBTS System -Mistakes KMS -Discussion KMS -Distinguished Features(omitted)

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토양화학 (Soil Chemistry)

  • 이상은;홍종운;김유학;박찬원;서명철;옥용식;장용선;정원교;정창윤;현승훈;홍승길
    • 한국토양비료학회지
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    • 제42권별호
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    • pp.53-101
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    • 2009

Changes of Potential NPK Input by Chemical Fertilizers and Livestock Manure from 1990 to 2011 in Korea

  • Yun, Hong Bae;Lee, Ye Jin;Kim, Myung Sook;Sung, Jwa Kyung;Zhang, Yong Seon;Lee, Sang Min;Kim, Suk Chul;Lee, Yong Bok
    • 한국토양비료학회지
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    • 제46권6호
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    • pp.593-598
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    • 2013
  • The livestock manure is a good source of major plant nutrients such as nitrogen, phosphorus and potassium and micronutrient that plants require. As aspect of establishment of nutrient management policy in nation scale, the use of livestock manure for agricultural purpose is a key factor for improving national nutrient balance. In this study, we evaluated the tendency of livestock manure production and amount of chemical fertilizer used in Korea from 1990 to 2011. The number of pig and chicken has been increased about two times in 2011 compared with 1990 and therefore livestock manure continually increased with the lapse of year, but cattle and dairy was not changed significantly. The chemical fertilizer consumption of nitrogen, phosphorus and potassium per hectare arable land was decreased by 54.6, 66.0 and 63.2% in 2011 compared with 1990, respectively. In contrast, the potential input of nitrogen, phosphorus and potassium to arable land through livestock manure was increased by 220, 210 and 210% during this period, respectively. Therefore we need a reasonable strategy for nutrient management such as combination of both manure and chemical fertilizers in near future.

사격지휘체계의 인공지능 적용 방안 (A Methodology for Applying A.I. to Fire Command & Control System)

  • 한창희;이종관;신규용;최성훈;문상우
    • 한국컴퓨터정보학회:학술대회논문집
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    • 한국컴퓨터정보학회 2019년도 제60차 하계학술대회논문집 27권2호
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    • pp.5-6
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    • 2019
  • 본 논문에서는 데이터 기반 정보 고도화를 통해, 사격전술지휘 의사결정체계의 Assisted Decision-Maker인 AI 부전포대장을 구현하는 방법론을 제시한다. 전포대장은 지휘결심의 말단에 있는 지휘관으로서, 최종적인 의사결정자이다. 이들의 지휘결심이 보다 견고하고 신속하게 이루어지도록 하는 것이 전쟁 승패에 매우 중요한 요소이다. 화력체계를 언급하는 경우 JMEM 탄약효과가 자주 언급되고 한국형 구축 사업이 아직 진행 중이기도 하지만, 완료되더라도 임의의 지형과 전술상황 각각에 대한 유용성까지를 입증하는 데에는 또 다른 기간과 노력이 요구된다. 본고에서는 AI 플랫폼 구축의 실제 사례가 전무한 상황에서 AI 부전포대장 구축을 위해 필요한 연구의 범위와 그 대상을 살펴보고, 지능형 사격지휘체계의 구축 방안을 제안한다.

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Researching How the External Force and Damping Coefficient Affects the Movement of Skyscrapers

  • Kwon, Do Hyeok;Baek, Min Woo;Ahn, Jae Woong;Youn, Tai Sic;Lee, Chang yong
    • EDISON SW 활용 경진대회 논문집
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    • 제5회(2016년)
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    • pp.377-380
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    • 2016
  • Safety is the most important factor in skyscrapers. The fact that skyscrapers can contain many facilities and people is one of its many advantages. However external pressure such as earthquakes or wind might make accidents that lead to casualties. Because of its large size, small accidents still make big scale of damage. In this paper, we tried to find out what kind of factors affected the movement of skyscrapers using the 'One Dimentional Forced Damped Oscillation Interpretation Software'. Then we researched how to minimize the damage caused by it and the way to correspond to it.

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Genetic mapping and sequence analysis of Phi class Glutathione S-transferases (BrGSTFs) candidates from Brassica rapa

  • Park, Tae-Ho;Jin, Mi-Na;Lee, Sang-Choon;Hong, Joon-Ki;Kim, Jung-Sun;Kim, Jin-A;Kwon, Soo-Jin;Zang, Yun-Xiang;Park, Young-Doo;Park, Beom-Seok
    • Journal of Plant Biotechnology
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    • 제35권4호
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    • pp.265-274
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    • 2008
  • Glutathione S-transferases (GSTs) are multifunctional proteins encoded by a large gene family divided into Phi, Tau, Theta, Zeta, Lambda and DHAR classes on the basis of sequence identity. The Phi(F) and Tau(U) classes are plant-specific and ubiquitous. Their roles have been defined as herbicide detoxification and responses to biotic and abiotic stresses. Fifty-two members of the GST super-family were identified in the Arabidopsis thaliana genome, 13 members of which belong to the Phi class of GSTs (AtGSTFs). Based on the sequence similarities of AtGSTFs, 11 BAC clones were identified from Brassica rapa. Seven unique sequences of ORFs designated the Phi class candidates of GST derived from B. rapa (BrGSTFs) were detected from these 11 BAC clones by blast search and sequence alignment. Some of BrGSTFs were present in the same BAC clones indicating that BrGSTFs could also be clustered as usual in plant. They were mapped on B. rapa linkage group 2, 3, 9 and 10 and their nucleotide and amino acid sequences were highly similar to those of AtGSTFs. In addition, in silico analysis of BrGSTFs using Korea Brassica Genome Project 24K oligochip and microarray database for cold, salt and drought stresses revealed 15 unigenes to be highly similar to AtGSTFs and six of these were identical to one of BrGSTFs identified in the BAC clones indicating their expression. The sequences of BrGSTFs and unigenes identified in this study will facilitate further studies to apply GST genes to medical and agriculture purposes.